price



v(No Model.)

W. H. PRICE, Jr.. CHASE EooK EOE PRINTING PRESSES.

Patelted Alm-12, .1887.

H HHII i HHHHHH u HHHHHIHHHHHHHIHHHIHIHH .Zh/76. @ngo/f HV1/ENID WILLIAMH. PRICE, Jn.,

OF CLEVELAND, OHIO,VASSI GNOR TO CHANDLER PRICE, OF SAME PLACE.

PATENT CEEICE.

CllAsE-HooKI-'OR PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 361,237, dated April12, 1887.

Application pled December 6, 1886. Serial No. 220,823. (No model.)

.To all whom it may concern:

Be it known that I, WILLIAM H. PRICE, J r., of Cleveland, in the countyof Cuyahoga and State of Ohio, have invented certain new and usefulImprovementsin Chase-Hooks for Printing-Presses; and I do hereby declarethe following to be a full, clear, andexact description ofthe invention,such as will enable others skilled in the art to which it pertains tomake and use the same.

My invention relates to improvements in chase hooks designed forAjobbing printingpresses of the platen variety; and it consists incertain features of construction and in combination of parts,hereinafter described, and pointed out in the claim.

With presses of the variety aforesaid the forms are frequently changed,sometimes many times a day. It is therefore a matter of considerableimportance that the chase-hook for securing and releasing the form be soconstructed and located that it can be quickly and easily operated. Thechasehooks heretofore in use, although of various forms and attachment,have beenthe source of general com. plaint on account of theirbeingdifiicult of access and hardto operate, and," with some varietiesthat were operated with screws, slow of movement. I have thereforedevised a chasehook in which, although no radical change has been madein the state ofthe art., the handle of the hook is made convenient ofaccess, and the construction is such that the hook is quickly andconveniently operative with one hand, leaving the other hand free tomanipulate the form.

In the accompanying drawings, Figure 1 is a rear elevation of the bed,showing my improved chase-hook in position. end elevation, partly insection, on the line x x, Fig. l. Fig. 3 is a plan.

A represents a bed of ordinary construction, the same being re-enforcedon the rear side by ribs a, and having lugs a', the latter havingnotches a2, made to fit the lower beveled edge of the chase B.

C is the chase-hook, the same being integral or rigidly attached to thelever C. The hook is undercut to engage the upper beveled Fig. 2 is anvedge of the chase when the latter abnts the face of the bed. The lever Cis pivoted at c to the rear side of the bed, and at the other end has ahandle, c', curved upward in the central part thereof, as shown, so asto eX- tend above the top edge of the bed. The shank of the hook extendsacross above the edge of the bed, and opposite the union of the hook andlever is attached to the latter a rod or Wire, d, that extends downthrough holes made in the horizontal ribs andleading through thecoil-spring D, the latter abutting the under side of the upper rib, asshown. An opening is made in the next lower rib to allow the spring topass through loosely.4 The roddhas a washer at the lowerend, that formsa seat for this end of the spring. If wires instead .of a rod be used,the ends of the wire may be bent outward and upward to engage the lowerend of the spring, and thus serve in place of a washer to form a seatfor the lower end of the spring. With this arrangement thespring is ofcourse compressed, when the lever is elevated, by tilting the latter.The ink disk above (not shown) being round, does not cover the handle c'of t-he chase-hook lever, leaving the handle conveniently accessible, asit is located near one side of the machine. The npward curve of thehandle admits the fingers of the operator being introduced from the rearside underneath the handle, while at the same time the operator mayrestthe end of his thumb on the adjacent edge of the bed, the positionbeing such that the lever and attachedhook are easily raised or steadilylowered;

The spring D is of sufficient stiffness to hold the hook in place,securing the chase; but by means of the location of the spring in thecentral part of the lever the leverage in favor of the operator is suchthat, as aforesaid, the device is easily manipulated, leaving one handof the operator free to manage the chase.

In a platen printing-press, the combination,

' with a bed and chase of ordinary construction, of a chase-hook andlever, the two parts being made integral or rigidly connected, the leverbeing pivoted to the rear side of the bed,

nem the one sido of the latter, nn upwardly- In testimony whereof signthis specificaourved handle located near the other end of tion, in thepresenceof two witnesses, this 17th the lever, and n sp1-ing fordepressing the lever day of November, 1886.

and connected with the latter, preferably 0p- WLLIAM II. PRICE, JR. 5poste the hook attachment, the parts being Witnesses:

arranged substantially as described, and for GEO. W. KING',

the purposes set forth. H. T. CHANDLER.

